A couple who works out together, stays together, we always say!

Thankfully it looks like Gwen Stefani and boyfriend Blake Shelton are going to be together for a long time.

In a recent interview, Gwen and her The Voice co-star Adam Levine were promoting the show when, of course, the discussion led to other matters.

“[Blake] killed the gym this morning. It’s funny because he’s so tall that like, literally no sweat suits fit him,” Gwen told Entertainment Tonight in a Facebook Live interview.

“I feel like you’d be there for five minutes and he’d be like, ‘I’m having a heart attack!” Adam Levine chimed in.

“Actually, it’s because of [Blake] that I worked out this morning,” Gwen replied. “I wasn’t gonna work out… He’s my trainer.”

The day before the interview, Blake actually said ET that he and Gwen like to stay in shape together: “I mean look at [her],” he said. “Wouldn’t you like to be born with her genetics? It’s not fair!”